Since my display is only a 1080i display, i can not take advantage of the BDP-105 just yet. So, i sent my 83 in to get the upgraded Special Edition DA chips.. I just got it hooked up, so i don't have an initial opinion...

Since you're following the thread, and something like this is just about impossible to search for, do you know if the DTS Neo:6 in the 105 does 5.1 to 7.1 up-mixing? The manual refers to stereo-to-7.1 but no mention of what it does to 5.1 sources.

I'm thinking about getting a 105, 7 channels of power amps, and doing away with a receiver entirely. It's got an HDMI input for my PS3, and does volume control, channel trims, bass management, and distance compensation; that's all I need from a receiver.

I contacted Oppo directly, alas they said that it only works for stereo sources.

Not a deal breaker, but a bummer, because the way my room is set up, without the rear channels, there seems to be a hole in the surround field. I'll keep thinking, and maybe the 115 will be out by the time I make up my mind, with every last feature I can dream about.